고군분투가 · 고군분투를
a lone struggle; fighting single-handedly against the odds
Example
그는 혼자서 고군분투하며 가게를 운영하고 있어요.
He's struggling single-handedly to run the store all on his own.
Word parts
고 lone+군 army+분 rouse+투 fight
Literally 'a lone army fighting hard.'
Related words